src/scene-manager.cpp

   1 /* guile-irrlicht --- GNU Guile bindings for Irrlicht Engine
   2
   3    Copyright (C) 2020 Javier Sancho <jsf@jsancho.org>
   4
   5    This file is part of guile-irrlicht.
   6
   7    guile-irrlicht is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU Lesser General Public License as
   9    published by the Free Software Foundation; either version 3 of the
  10    License, or (at your option) any later version.
  11
  12    guile-irrlicht is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with guile-irrlicht. If not, see
  19    <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include <irrlicht/irrlicht.h>
  23 #include <libguile.h>
  24
  25 #include "animated-mesh.h"
  26 #include "animated-mesh-scene-node.h"
  27 #include "box3d.h"
  28 #include "camera-scene-node.h"
  29 #include "device.h"
  30 #include "keymap.h"
  31 #include "material.h"
  32 #include "mesh.h"
  33 #include "mesh-scene-node.h"
  34 #include "scene-manager.h"
  35 #include "scene-node.h"
  36 #include "scene-node-animator.h"
  37 #include "vector3d.h"
  38 #include "wrapped.h"
  39
  40 extern "C" {
  41
  42   void
  43   init_scene_manager (void)
  44   {
  45     init_scene_manager_type ();
  46     scm_c_define_gsubr ("add-animated-mesh-scene-node!", 2, 0, 1,
  47                         (scm_t_subr)irr_scene_addAnimatedMeshSceneNode);
  48     scm_c_define_gsubr ("add-camera-scene-node!", 1, 0, 1,
  49                         (scm_t_subr)irr_scene_addCameraSceneNode);
  50     scm_c_define_gsubr ("add-camera-scene-node-fps!", 1, 0, 1,
  51                         (scm_t_subr)irr_scene_addCameraSceneNodeFPS);
  52     scm_c_define_gsubr ("add-custom-scene-node!", 5, 0, 1,
  53                         (scm_t_subr)irr_scene_addCustomSceneNode);
  54     scm_c_define_gsubr ("add-octree-scene-node!", 2, 0, 1,
  55                         (scm_t_subr)irr_scene_addOctreeSceneNode);
  56     scm_c_define_gsubr ("create-rotation-animator", 2, 0, 0,
  57                         (scm_t_subr)irr_scene_createRotationAnimator);
  58     scm_c_define_gsubr ("get-mesh", 2, 0, 0, (scm_t_subr)irr_scene_getMesh);
  59     scm_c_define_gsubr ("get-root-scene-node", 1, 0, 0, (scm_t_subr)irr_scene_getRootSceneNode);
  60     scm_c_define_gsubr ("get-scene-manager", 1, 0, 0, (scm_t_subr)irr_getSceneManager);
  61     scm_c_export ("add-animated-mesh-scene-node!", "add-camera-scene-node!",
  62                   "add-camera-scene-node-fps!", "add-custom-scene-node!",
  63                   "add-octree-scene-node!", "create-rotation-animator",
  64                   "get-mesh", "get-root-scene-node",
  65                   "get-scene-manager", NULL);
  66   }
  67
  68   DEFINE_WRAPPED_TYPE (irr::scene::ISceneManager*, "scene-manager",
  69                        init_scene_manager_type, scene_manager_p,
  70                        wrap_scene_manager, unwrap_scene_manager);
  71
  72   SCM
  73   irr_scene_addAnimatedMeshSceneNode (SCM wrapped_scene_manager,
  74                                       SCM mesh,
  75                                       SCM rest)
  76   {
  77     SCM parent = scm_from_bool (0);
  78     SCM id = scm_from_int32 (-1);
  79     SCM position = scm_list_3 (scm_from_double (0),
  80                                scm_from_double (0),
  81                                scm_from_double (0));
  82     SCM rotation = scm_list_3 (scm_from_double (0),
  83                                scm_from_double (0),
  84                                scm_from_double (0));
  85     SCM scale = scm_list_3 (scm_from_double (1),
  86                             scm_from_double (1),
  87                             scm_from_double (1));
  88     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
  89
  90     scm_c_bind_keyword_arguments ("add-animated-mesh-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
  91                                   scm_from_utf8_keyword ("parent"), &parent,
  92                                   scm_from_utf8_keyword ("id"), &id,
  93                                   scm_from_utf8_keyword ("position"), &position,
  94                                   scm_from_utf8_keyword ("rotation"), &rotation,
  95                                   scm_from_utf8_keyword ("scale"), &scale,
  96                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
  97                                   SCM_UNDEFINED);
  98
  99     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 100     irr::scene::IAnimatedMeshSceneNode* node =
 101       smgr->addAnimatedMeshSceneNode (unwrap_animated_mesh (mesh),
 102                                       scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 103                                       scm_to_int32 (id),
 104                                       scm_to_vector3df (position),
 105                                       scm_to_vector3df (rotation),
 106                                       scm_to_vector3df (scale),
 107                                       scm_to_bool (also_add_if_mesh_pointer_zero));
 108     return wrap_animated_mesh_scene_node (node);
 109   }
 110
 111   SCM
 112   irr_scene_addCameraSceneNode (SCM wrapped_scene_manager,
 113                                 SCM rest)
 114   {
 115     SCM parent = scm_from_bool (0);
 116     SCM position = scm_list_3 (scm_from_double (0),
 117                                scm_from_double (0),
 118                                scm_from_double (0));
 119     SCM lookat = scm_list_3 (scm_from_double (0),
 120                              scm_from_double (0),
 121                              scm_from_double (100));
 122     SCM id = scm_from_int32 (-1);
 123     SCM make_active = scm_from_bool (1);
 124
 125     scm_c_bind_keyword_arguments ("add-camera-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 126                                   scm_from_utf8_keyword ("parent"), &parent,
 127                                   scm_from_utf8_keyword ("position"), &position,
 128                                   scm_from_utf8_keyword ("lookat"), &lookat,
 129                                   scm_from_utf8_keyword ("id"), &id,
 130                                   scm_from_utf8_keyword ("make-active"), &make_active,
 131                                   SCM_UNDEFINED);
 132
 133     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 134     irr::scene::ICameraSceneNode* camera =
 135       scene_manager->addCameraSceneNode (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 136                                          scm_to_vector3df (position),
 137                                          scm_to_vector3df (lookat),
 138                                          scm_to_int32 (id),
 139                                          scm_to_bool (make_active));
 140     return wrap_camera_scene_node (camera);
 141   }
 142
 143   SCM
 144   irr_scene_addCameraSceneNodeFPS (SCM wrapped_scene_manager,
 145                                    SCM rest)
 146   {
 147     SCM parent = scm_from_bool (0);
 148     SCM rotate_speed = scm_from_double (100);
 149     SCM move_speed = scm_from_double (0.5);
 150     SCM id = scm_from_int32 (-1);
 151     SCM key_map_array = scm_from_bool (0);
 152     SCM key_map_size = scm_from_int32 (0);
 153     SCM no_vertical_movement = scm_from_bool (0);
 154     SCM jump_speed = scm_from_double (0);
 155     SCM invert_mouse = scm_from_bool (0);
 156     SCM make_active = scm_from_bool (1);
 157
 158     scm_c_bind_keyword_arguments ("add-camera-scene-node-fps!", rest, (scm_t_keyword_arguments_flags)0,
 159                                   scm_from_utf8_keyword ("parent"), &parent,
 160                                   scm_from_utf8_keyword ("rotate-speed"), &rotate_speed,
 161                                   scm_from_utf8_keyword ("move-speed"), &move_speed,
 162                                   scm_from_utf8_keyword ("id"), &id,
 163                                   scm_from_utf8_keyword ("key-map-array"), &key_map_array,
 164                                   scm_from_utf8_keyword ("key-map-size"), &key_map_size,
 165                                   scm_from_utf8_keyword ("no-vertical-movement"), &no_vertical_movement,
 166                                   scm_from_utf8_keyword ("jump-speed"), &jump_speed,
 167                                   scm_from_utf8_keyword ("invert-mouse"), &invert_mouse,
 168                                   scm_from_utf8_keyword ("make-active"), &make_active,
 169                                   SCM_UNDEFINED);
 170
 171     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 172     irr::scene::ICameraSceneNode* camera =
 173       scene_manager->addCameraSceneNodeFPS (scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 174                                             scm_to_double (rotate_speed),
 175                                             scm_to_double (move_speed),
 176                                             scm_to_int32 (id),
 177                                             scm_is_false (key_map_array) ? 0 : unwrap_keymap (key_map_array),
 178                                             scm_to_int32 (key_map_size),
 179                                             scm_to_bool (no_vertical_movement),
 180                                             scm_to_double (jump_speed),
 181                                             scm_to_bool (invert_mouse),
 182                                             scm_to_bool (make_active));
 183     return wrap_camera_scene_node (camera);
 184   }
 185
 186   SCM
 187   irr_scene_addCustomSceneNode (SCM wrapped_scene_manager,
 188                                 SCM proc_render,
 189                                 SCM proc_get_bounding_box,
 190                                 SCM proc_get_material_count,
 191                                 SCM proc_get_material,
 192                                 SCM rest)
 193   {
 194     irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
 195
 196     SCM parent = wrap_scene_node (scene_manager->getRootSceneNode ());
 197     SCM id = scm_from_int32 (-1);
 198     SCM position = scm_list_3 (scm_from_double (0),
 199                                scm_from_double (0),
 200                                scm_from_double (0));
 201     SCM rotation = scm_list_3 (scm_from_double (0),
 202                                scm_from_double (0),
 203                                scm_from_double (0));
 204     SCM scale = scm_list_3 (scm_from_double (1),
 205                             scm_from_double (1),
 206                             scm_from_double (1));
 207
 208     scm_c_bind_keyword_arguments ("add-custom-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 209                                   scm_from_utf8_keyword ("parent"), &parent,
 210                                   scm_from_utf8_keyword ("id"), &id,
 211                                   scm_from_utf8_keyword ("position"), &position,
 212                                   scm_from_utf8_keyword ("rotation"), &rotation,
 213                                   scm_from_utf8_keyword ("scale"), &scale,
 214                                   SCM_UNDEFINED);
 215
 216     class CustomSceneNode : public irr::scene::ISceneNode
 217     {
 218       SCM scm_render;
 219       SCM scm_get_bounding_box;
 220       SCM scm_get_material_count;
 221       SCM scm_get_material;
 222
 223     public:
 224       CustomSceneNode (irr::scene::ISceneNode* parent,
 225                        irr::scene::ISceneManager* smgr,
 226                        irr::s32 id,
 227                        const irr::core::vector3df& position,
 228                        const irr::core::vector3df& rotation,
 229                        const irr::core::vector3df& scale,
 230                        SCM render,
 231                        SCM get_bounding_box,
 232                        SCM get_material_count,
 233                        SCM get_material)
 234         : irr::scene::ISceneNode (parent, smgr, id, position, rotation, scale)
 235       {
 236         scm_render = render;
 237         scm_get_bounding_box = get_bounding_box;
 238         scm_get_material_count = get_material_count;
 239         scm_get_material = get_material;
 240       }
 241
 242       virtual void OnRegisterSceneNode ()
 243       {
 244         if (IsVisible)
 245           {
 246             SceneManager->registerNodeForRendering (this);
 247           }
 248         ISceneNode::OnRegisterSceneNode ();
 249       }
 250
 251       virtual void render ()
 252       {
 253         scm_call_0 (scm_render);
 254       }
 255
 256       virtual const irr::core::aabbox3d<irr::f32>& getBoundingBox () const
 257       {
 258         SCM box = scm_call_0 (scm_get_bounding_box);
 259         return *(unwrap_box3d (box));
 260       }
 261
 262       virtual irr::u32 getMaterialCount () const
 263       {
 264         return scm_to_uint32 (scm_call_0 (scm_get_material_count));
 265       }
 266
 267       virtual irr::video::SMaterial& getMaterial (irr::u32 i)
 268       {
 269         SCM material = scm_call_1 (scm_get_material, scm_from_uint32 (i));
 270         return *(unwrap_material (material));
 271       }
 272     };
 273
 274     CustomSceneNode* node =
 275       new CustomSceneNode (unwrap_scene_node (parent),
 276                            scene_manager,
 277                            scm_to_int32 (id),
 278                            scm_to_vector3df (position),
 279                            scm_to_vector3df (rotation),
 280                            scm_to_vector3df (scale),
 281                            proc_render,
 282                            proc_get_bounding_box,
 283                            proc_get_material_count,
 284                            proc_get_material);
 285     return wrap_scene_node (node);
 286   }
 287
 288   SCM
 289   irr_scene_addOctreeSceneNode (SCM wrapped_scene_manager,
 290                                 SCM wrapped_mesh,
 291                                 SCM rest)
 292   {
 293     SCM parent = scm_from_bool (0);
 294     SCM id = scm_from_int32 (-1);
 295     SCM minimal_polys_per_node = scm_from_int32 (256);
 296     SCM also_add_if_mesh_pointer_zero = scm_from_bool (0);
 297
 298     scm_c_bind_keyword_arguments ("add-octree-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
 299                                   scm_from_utf8_keyword ("parent"), &parent,
 300                                   scm_from_utf8_keyword ("id"), &id,
 301                                   scm_from_utf8_keyword ("minimal-polys-per-node"), &minimal_polys_per_node,
 302                                   scm_from_utf8_keyword ("also-add-if-mesh-pointer-zero"), &also_add_if_mesh_pointer_zero,
 303                                   SCM_UNDEFINED);
 304
 305     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 306     irr::scene::IMeshSceneNode* node;
 307     if (animated_mesh_p (wrapped_mesh))
 308       {
 309         node = smgr->addOctreeSceneNode (unwrap_animated_mesh (wrapped_mesh),
 310                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 311                                          scm_to_int32 (id),
 312                                          scm_to_int32 (minimal_polys_per_node),
 313                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 314       }
 315     else
 316       {
 317         node = smgr->addOctreeSceneNode (unwrap_mesh (wrapped_mesh),
 318                                          scm_is_false (parent) ? 0 : unwrap_scene_node (parent),
 319                                          scm_to_int32 (id),
 320                                          scm_to_int32 (minimal_polys_per_node),
 321                                          scm_to_bool (also_add_if_mesh_pointer_zero));
 322       }
 323     return wrap_mesh_scene_node (node);
 324   }
 325
 326   SCM
 327   irr_scene_createRotationAnimator (SCM wrapped_scene_manager,
 328                                     SCM rotation_speed)
 329   {
 330     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 331     irr::scene::ISceneNodeAnimator* anim =
 332       smgr->createRotationAnimator(scm_to_vector3df (rotation_speed));
 333     return wrap_scene_node_animator (anim);
 334   }
 335
 336   SCM
 337   irr_scene_getMesh (SCM wrapped_scene_manager,
 338                      SCM filename)
 339   {
 340     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 341     irr::scene::IAnimatedMesh* mesh = smgr->getMesh(scm_to_utf8_stringn (filename, NULL));
 342     return wrap_animated_mesh (mesh);
 343   }
 344
 345   SCM
 346   irr_scene_getRootSceneNode (SCM wrapped_scene_manager)
 347   {
 348     irr::scene::ISceneManager* smgr = unwrap_scene_manager (wrapped_scene_manager);
 349     return wrap_scene_node (smgr->getRootSceneNode ());
 350   }
 351
 352   SCM
 353   irr_getSceneManager (SCM wrapped_obj)
 354   {
 355     irr::scene::ISceneManager* scene_manager;
 356     if (device_p (wrapped_obj))
 357       {
 358         scene_manager = unwrap_device (wrapped_obj)->getSceneManager ();
 359       }
 360     else
 361       {
 362         scm_error (scm_arg_type_key, NULL, "Cannot get scene manager from object: ~S",
 363                    scm_list_1 (wrapped_obj), scm_list_1 (wrapped_obj));
 364       }
 365     return wrap_scene_manager (scene_manager);
 366   }
 367
 368 }